Katou Danzou

Katou Danzou is a sentient karakuri doll created by the sorcerer Kashin Koji and the First Fuuma Kotarou. During the Edo and Sengoku era of Japan, she mainly gathered intel and help train future leaders of the Fuuma Clan. Despite originally being a emotionless doll, Donzou would slowly gain human emotions and acted more like a caring mother towards the fifth Fuuma Kotarou that you met at Chaldea.